mod.rs - mozsearch

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#![allow(missing_docs)]

mod array;

mod primitive;

use core::fmt::Debug;

use core::hash::Hash;

use core::ops::*;

/// A trait marking valid underlying bitset storage types and providing the

/// operations `EnumSet` and related types use.

///

/// # Safety

///

/// Note that `iter` *MUST* be implemented correctly and only return bits that

/// are actually set in the representation, or else it will cause undefined

/// behavior upstream in `EnumSet`.

pub trait EnumSetTypeRepr :

    // Basic traits used to derive traits

    Copy +

    Ord +

    Eq +

    Debug +

    Hash +

    // Operations used by enumset

    BitAnd<Output = Self> +

    BitOr<Output = Self> +

    BitXor<Output = Self> +

    Not<Output = Self> +

    const PREFERRED_ARRAY_LEN: usize;

    const WIDTH: u32;

    const EMPTY: Self;

    fn is_empty(&self) -> bool;

    fn add_bit(&mut self, bit: u32);

    fn remove_bit(&mut self, bit: u32);

    fn has_bit(&self, bit: u32) -> bool;

    fn count_ones(&self) -> u32;

    fn leading_zeros(&self) -> u32;

    fn trailing_zeros(&self) -> u32;

    fn and_not(&self, other: Self) -> Self;

    type Iter: Iterator<Item = u32> + DoubleEndedIterator + Clone + Debug;

    fn iter(self) -> Self::Iter;

    fn from_u8(v: u8) -> Self;

    fn from_u16(v: u16) -> Self;

    fn from_u32(v: u32) -> Self;

    fn from_u64(v: u64) -> Self;

    fn from_u128(v: u128) -> Self;

    fn from_usize(v: usize) -> Self;

    fn to_u8(&self) -> u8;

    fn to_u16(&self) -> u16;

    fn to_u32(&self) -> u32;

    fn to_u64(&self) -> u64;

    fn to_u128(&self) -> u128;

    fn to_usize(&self) -> usize;

    fn from_u8_opt(v: u8) -> Option<Self>;

    fn from_u16_opt(v: u16) -> Option<Self>;

    fn from_u32_opt(v: u32) -> Option<Self>;

    fn from_u64_opt(v: u64) -> Option<Self>;

    fn from_u128_opt(v: u128) -> Option<Self>;

    fn from_usize_opt(v: usize) -> Option<Self>;

    fn to_u8_opt(&self) -> Option<u8>;

    fn to_u16_opt(&self) -> Option<u16>;

    fn to_u32_opt(&self) -> Option<u32>;

    fn to_u64_opt(&self) -> Option<u64>;

    fn to_u128_opt(&self) -> Option<u128>;

    fn to_usize_opt(&self) -> Option<usize>;

    fn to_u64_array<const O: usize>(&self) -> [u64; O];

    fn to_u64_array_opt<const O: usize>(&self) -> Option<[u64; O]>;

    fn from_u64_array<const O: usize>(v: [u64; O]) -> Self;

    fn from_u64_array_opt<const O: usize>(v: [u64; O]) -> Option<Self>;

    fn to_u64_slice(&self, out: &mut [u64]);

    #[must_use]

    fn to_u64_slice_opt(&self, out: &mut [u64]) -> Option<()>;

    fn from_u64_slice(v: &[u64]) -> Self;

    fn from_u64_slice_opt(v: &[u64]) -> Option<Self>;

pub use array::ArrayRepr;